/**
 * 工具类封装
 * 字体适配size 升序compare 时间戳转换formatDate 随机字符串randomWord 过滤filter ASCII排序objectKeySort MD5算法签名MD5 utf-8编码EncodeUtf8
 **/

import { PixelRatio } from 'react-native';
export default class CommonUtils {
  /**
   * 字体适配
   * @param {*} size 
   */
  static size(size) {
    if (PixelRatio.get() === 1) {
      return size * 0.9;     //mdpi Android 设备 (160 dpi)
    } else if (PixelRatio.get() === 1.5) {
      return size * 1;       //hdpi Android 设备 (240 dpi)
    } else if (PixelRatio.get() === 2) {
      return size * 1.15;    //iphone 4,4s,5.5c,5s,6
    } else if (PixelRatio.get() === 3) {
      return size * 1.25;    //6p  xxhdpi Android 设备 (480 dpi)
    } else if (PixelRatio.get() === 3.5) {
      return size * 1.27;    //Nexus 6
    };
  };
  /**
   * 升序
   * @property {字段} string 
   */
  static compare(property) {
    return function (obj1, obj2) {
      var value1 = obj1[property];
      var value2 = obj2[property];
      return value1 - value2;
    };
  };
  /**
   * 时间戳转换 2018-01-01 10:20
   */
  static formatDate(now) {
    if (now % 1 === 0) {
      var now = new Date(parseInt(now) * 1000)
      var year = now.getFullYear();
      var month = now.getMonth() + 1;
      var date = now.getDate();
      var hour = now.getHours();
      var minute = now.getMinutes();
      return year + '-' + (month < 10 ? '0' + month : month) + '-' + (date < 10 ? '0' + date : date) + '  ' + (hour < 10 ? '0' + hour : hour) + ':' + (minute < 10 ? '0' + minute : minute);
    } else {
      return now;
    };
  };
  /**
   * 时间戳转换 01-01 10:20
   */
  static messageDate(now) {
    if (now % 1 === 0) {
      var now = new Date(parseInt(now) * 1000);
      var month = now.getMonth() + 1;
      var date = now.getDate();
      var hour = now.getHours();
      var minute = now.getMinutes();
      return month + '-' + date + '  ' + (hour < 10 ? '0' + hour : hour) + ':' + (minute < 10 ? '0' + minute : minute);
    } else {
      return now;
    };
  };
  /**
   * 时间戳转换 01-01
   */
  static format(now) {
    if (now % 1 === 0) {
      var now = new Date(parseInt(now) * 1000);
      var month = now.getMonth() + 1;
      var date = now.getDate();
      return (month < 10 ? '0' + month : month) + '-' + (date < 10 ? '0' + date : date);
    } else {
      return now;
    };
  };
  /**
   * 随机字符串
   * @param {随机字符串长度} length 
   */
  static randomWord(length) {
    var chars = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'];
    var nums = '';
    for (var i = 0; i < length; i++) {
      var id = parseInt(Math.random() * 61);
      nums += chars[id];
    };
    return nums;
  };
  /**
   * @param {过滤参数为空 的字段} object 
   */
  static filter(params) {
    var dataArr = [];
    var newKey = Object.keys(params).sort();
    var object = {};
    //排序
    for (let i = 0; i < newKey.length; i++) {
      object[newKey[i]] = params[newKey[i]];
    };
    //筛选除value为空的key
    for (var key in object) {
      if (object[key]) {
        var str = key + '=' + object[key];
        dataArr.push(str);
      };
    };
    return dataArr.join('&');
  };
  /**
   * a->z ASCII 排序
   * @param {*排序数组} arr 
   */
  static objectKeySort(params) {
    var newKey = Object.keys(params).sort();
    var newParams = {};
    for (let i = 0; i < newKey.length; i++) {
      newParams[newKey[i]] = params[newKey[i]];
    };
    return newParams;
  };
  /**
   * MD5签名算法封装  传入字符串->32位hash值
   */
  static MD5(string) {
    function RotateLeft(lValue, iShiftBits) {
      return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
    };
    function AddUnsigned(lX, lY) {
      var lX4, lY4, lX8, lY8, lResult;
      lX8 = (lX & 0x80000000);
      lY8 = (lY & 0x80000000);
      lX4 = (lX & 0x40000000);
      lY4 = (lY & 0x40000000);
      lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
      if (lX4 & lY4) {
        return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
      };
      if (lX4 | lY4) {
        if (lResult & 0x40000000) {
          return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
        } else {
          return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
        };
      } else {
        return (lResult ^ lX8 ^ lY8);
      };
    };
    function F(x, y, z) { return (x & y) | ((~x) & z); };
    function G(x, y, z) { return (x & z) | (y & (~z)); };
    function H(x, y, z) { return (x ^ y ^ z); };
    function I(x, y, z) { return (y ^ (x | (~z))); };
    function FF(a, b, c, d, x, s, ac) {
      a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
      return AddUnsigned(RotateLeft(a, s), b);
    };
    function GG(a, b, c, d, x, s, ac) {
      a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
      return AddUnsigned(RotateLeft(a, s), b);
    };
    function HH(a, b, c, d, x, s, ac) {
      a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
      return AddUnsigned(RotateLeft(a, s), b);
    };
    function II(a, b, c, d, x, s, ac) {
      a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
      return AddUnsigned(RotateLeft(a, s), b);
    };
    function ConvertToWordArray(string) {
      var lWordCount;
      var lMessageLength = string.length;
      var lNumberOfWords_temp1 = lMessageLength + 8;
      var lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64;
      var lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16;
      var lWordArray = Array(lNumberOfWords - 1);
      var lBytePosition = 0;
      var lByteCount = 0;
      while (lByteCount < lMessageLength) {
        lWordCount = (lByteCount - (lByteCount % 4)) / 4;
        lBytePosition = (lByteCount % 4) * 8;
        lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
        lByteCount++;
      };
      lWordCount = (lByteCount - (lByteCount % 4)) / 4;
      lBytePosition = (lByteCount % 4) * 8;
      lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
      lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
      lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
      return lWordArray;
    };
    function WordToHex(lValue) {
      var WordToHexValue = '', WordToHexValue_temp = '', lByte, lCount;
      for (lCount = 0; lCount <= 3; lCount++) {
        lByte = (lValue >>> (lCount * 8)) & 255;
        WordToHexValue_temp = '0' + lByte.toString(16);
        WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2, 2);
      };
      return WordToHexValue;
    };
    function Utf8Encode(string) {
      string = string.replace(/\r\n/g, '\n');
      var utftext = '';
      for (var n = 0; n < string.length; n++) {
        var c = string.charCodeAt(n);
        if (c < 128) {
          utftext += String.fromCharCode(c);
        } else if ((c > 127) && (c < 2048)) {
          utftext += String.fromCharCode((c >> 6) | 192);
          utftext += String.fromCharCode((c & 63) | 128);
        } else {
          utftext += String.fromCharCode((c >> 12) | 224);
          utftext += String.fromCharCode(((c >> 6) & 63) | 128);
          utftext += String.fromCharCode((c & 63) | 128);
        };
      };
      return utftext;
    };
    var x = Array();
    var k, AA, BB, CC, DD, a, b, c, d;
    var S11 = 7, S12 = 12, S13 = 17, S14 = 22;
    var S21 = 5, S22 = 9, S23 = 14, S24 = 20;
    var S31 = 4, S32 = 11, S33 = 16, S34 = 23;
    var S41 = 6, S42 = 10, S43 = 15, S44 = 21;
    string = Utf8Encode(string);
    x = ConvertToWordArray(string);
    a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
    for (k = 0; k < x.length; k += 16) {
      AA = a; BB = b; CC = c; DD = d;
      a = FF(a, b, c, d, x[k + 0], S11, 0xD76AA478);
      d = FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756);
      c = FF(c, d, a, b, x[k + 2], S13, 0x242070DB);
      b = FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
      a = FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
      d = FF(d, a, b, c, x[k + 5], S12, 0x4787C62A);
      c = FF(c, d, a, b, x[k + 6], S13, 0xA8304613);
      b = FF(b, c, d, a, x[k + 7], S14, 0xFD469501);
      a = FF(a, b, c, d, x[k + 8], S11, 0x698098D8);
      d = FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
      c = FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
      b = FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE);
      a = FF(a, b, c, d, x[k + 12], S11, 0x6B901122);
      d = FF(d, a, b, c, x[k + 13], S12, 0xFD987193);
      c = FF(c, d, a, b, x[k + 14], S13, 0xA679438E);
      b = FF(b, c, d, a, x[k + 15], S14, 0x49B40821);
      a = GG(a, b, c, d, x[k + 1], S21, 0xF61E2562);
      d = GG(d, a, b, c, x[k + 6], S22, 0xC040B340);
      c = GG(c, d, a, b, x[k + 11], S23, 0x265E5A51);
      b = GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
      a = GG(a, b, c, d, x[k + 5], S21, 0xD62F105D);
      d = GG(d, a, b, c, x[k + 10], S22, 0x2441453);
      c = GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681);
      b = GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
      a = GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
      d = GG(d, a, b, c, x[k + 14], S22, 0xC33707D6);
      c = GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87);
      b = GG(b, c, d, a, x[k + 8], S24, 0x455A14ED);
      a = GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905);
      d = GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
      c = GG(c, d, a, b, x[k + 7], S23, 0x676F02D9);
      b = GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
      a = HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942);
      d = HH(d, a, b, c, x[k + 8], S32, 0x8771F681);
      c = HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122);
      b = HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C);
      a = HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);
      d = HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
      c = HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
      b = HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
      a = HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6);
      d = HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA);
      c = HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085);
      b = HH(b, c, d, a, x[k + 6], S34, 0x4881D05);
      a = HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039);
      d = HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
      c = HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
      b = HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665);
      a = II(a, b, c, d, x[k + 0], S41, 0xF4292244);
      d = II(d, a, b, c, x[k + 7], S42, 0x432AFF97);
      c = II(c, d, a, b, x[k + 14], S43, 0xAB9423A7);
      b = II(b, c, d, a, x[k + 5], S44, 0xFC93A039);
      a = II(a, b, c, d, x[k + 12], S41, 0x655B59C3);
      d = II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
      c = II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
      b = II(b, c, d, a, x[k + 1], S44, 0x85845DD1);
      a = II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
      d = II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
      c = II(c, d, a, b, x[k + 6], S43, 0xA3014314);
      b = II(b, c, d, a, x[k + 13], S44, 0x4E0811A1);
      a = II(a, b, c, d, x[k + 4], S41, 0xF7537E82);
      d = II(d, a, b, c, x[k + 11], S42, 0xBD3AF235);
      c = II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
      b = II(b, c, d, a, x[k + 9], S44, 0xEB86D391);
      a = AddUnsigned(a, AA);
      b = AddUnsigned(b, BB);
      c = AddUnsigned(c, CC);
      d = AddUnsigned(d, DD);
    };
    var temp = WordToHex(a) + WordToHex(b) + WordToHex(c) + WordToHex(d);
    return temp.toUpperCase();
  };

  /**
   * utf-8编码
   * @param {字符串} s1 
   */
  static EncodeUtf8(s1) {
    var s = escape(s1);
    var sa = s.split('%');
    var retV = '';
    if (sa[0] != '') { retV = sa[0]; };
    for (var i = 1; i < sa.length; i++) {
      if (sa[i].substring(0, 1) == 'u') {
        retV += Hex2Utf8(Str2Hex(sa[i].substring(1, 5)));
      } else {
        retV += '%' + sa[i];
      };
    };
    return retV;
  };
  Str2Hex = (s) => {
    var c = '';
    var n;
    var ss = '0123456789ABCDEF';
    var digS = '';
    for (var i = 0; i < s.length; i++) {
      c = s.charAt(i);
      n = ss.indexOf(c);
      digS += Dec2Dig(eval(n));
    };
    return digS;
  };
  Dec2Dig = (n1) => {
    var s = '';
    var n2 = 0;
    for (var i = 0; i < 4; i++) {
      n2 = Math.pow(2, 3 - i);
      if (n1 >= n2) {
        s += '1';
        n1 = n1 - n2;
      } else {
        s += '0';
      };
    };
    return s;
  };
  Dig2Dec = (s) => {
    var retV = 0;
    if (s.length == 4) {
      for (var i = 0; i < 4; i++) {
        retV += eval(s.charAt(i)) * Math.pow(2, 3 - i);
      };
      return retV;
    };
    return -1;
  };
  Hex2Utf8 = (s) => {
    var retS = '';
    var tempS = '';
    var ss = '';
    if (s.length == 16) {
      tempS = '1110' + s.substring(0, 4);
      tempS += '10' + s.substring(4, 10);
      tempS += '10' + s.substring(10, 16);
      var sss = '0123456789ABCDEF';
      for (var i = 0; i < 3; i++) {
        retS += '%';
        ss = tempS.substring(i * 8, (eval(i) + 1) * 8);
        retS += sss.charAt(Dig2Dec(ss.substring(0, 4)));
        retS += sss.charAt(Dig2Dec(ss.substring(4, 8)));
      };
      return retS;
    };
    return '';
  };
  static _createDateData() {
    var today = new Date();
    var year = today.getFullYear();
    var month = today.getMonth() + 1;
    var day = today.getDate();
    let date = [];
    for (let i = 1910; i <= year - 1; i++) {
      let month = [];
      for (let j = 1; j < 13; j++) {
        let day = [];
        if (j === 2) {
          for (let k = 1; k < 29; k++) {
            // day.push(k + ' 日');
            day.push(k);
          };
          //Leap day for years that are divisible by 4, such as 2000, 2004
          if (i % 4 === 0) {
            // day.push(29 + ' 日');
            day.push(29);
          };
        } else if (j in { 1: 1, 3: 1, 5: 1, 7: 1, 8: 1, 10: 1, 12: 1 }) {
          for (let k = 1; k < 32; k++) {
            // day.push(k + ' 日');
            day.push(k);
          };
        } else {
          for (let k = 1; k < 31; k++) {
            // day.push(k + ' 日');
            day.push(k);
          };
        };
        let _month = {};
        // _month[j + ' 月'] = day;
        _month[j] = day;
        month.push(_month);
      };
      let _date = {};
      // _date[i + ' 年'] = month;
      _date[i] = month;
      date.push(_date);
    };
    console.log(date)
    return date;
  };
};
